Electric-trolley-wire hanger.



Patented Dec. 9, I902.

A. PALMBUS. ELECTRIC TROLLEY WIRE HANGER.

(Appl 1; fildJ' o 1901) (No Model.)

UNITED STATES PATENT OFFICE.

ALEXANDER PALMROS, OF COLUMBUS, OHIO, ASSIGNOR TO THE JEFFREYMANUFACTURING COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

ELECTRlC-TROLLEY-WIRE HANGER.

SPECIFICATION forming part of Letters Patent No. 715,415, dated December9, 1902.

Original application filed September 24, 1897, Serial No. 652,908.Divided and this application filed June 6, 1901. Serial No. 63,437. (Nomodel.)

To all whom it may concern:

Be it known that I, ALEXANDER PALMROS, a citizen of Finland, residing atColumbus, in the county of Franklin and State of Ohio,

have invented certain new and useful Improvements inElectriclrolley-\Vire Hangers, of which the following is aspecification, reference being had therein to the accompanying drawings.

Figure 1 is a side View of a trolley-wire or conductor and supports forthe same embodying my invention. Fig. 2 is a sectional View of the sameon line II II, Fig. 1. Fig. -3 is a vertical sectional viewat rightangles to the section plane of Fig. 2. Fig. 4 is a plan view of one ofthe supporting-arms.

In this application, which is a division of my application, Serial No.652,908, filed September 24c, 1897, I have illustrated and will describea form of support for a conducting or trolley wire which I have foundwell adapted for use with the trolley therein shown and described, whichis a more or less laterallyacting trolley, although some of the features25 of invention are adapted as well for use with a vertically-actingtrolley of the ordinary construction.

The support consists of a casting W, having one face adapted to restagainst a support and provided with ears 10, having apertures W toreceive fastening screws or bolts. The casting is provided with a sockettwo of the side walls of which are inclined inwardly from their upper totheir lower edges, and

within this socket is arranged the expanded head W of the hanger, havinga rod W extending therefrom, the lower portion of the rod being providedwith suitable screwthreads. The head W of the rod WV is separated fromthe casting W by insulating material Y, and the upper end of the socketin said casting is closed by a oap-plate WV, provided at its ends withears 10, which aline with and are bolted to ears 20 on the casting IN.The socket extends entirely through the casting, and, as shown at Fig.2, the inner face of the casting is recessed around the inner open endof the socket, and the plate W lies in this recess. This constructionmakes it possible to attach the casting with its inner face directlyagainst the support and at the same time to use a casting with athroughsocket closed at its inner end for the insulation and the head ofthe hanger.

On the rod W below the casting W are mounted two reciprocating orengaging arms W W The arm W is provided at its inner end with a'shortsleeve-like portion 10, which extends about said rod W and is clampedsecurely between the lower face or surface of the head W by a nut W Atits outer end said arm W has formed in its upper face a socket or groove5, adapted to receive a portion of the wire V. The other arm W isprovided at its inner end with a sleeve 10 the diameter of which issomewhat greater than the diameter of the rod W ,about which it isfitted, and said sleeve W is supported by means of a nut WV At its outerend said arm has formed in its lower surface a groove or seat 6 toreceive the upper portion of the wire V, and at an intermediate portionof its length said arm is provided with a lug or projection W whichextends into a socket or seat formed in a projection WV on the other armW Thus it will be seen that the arm W is fulcrumed to firmly grip thewire V by means of the nut W It will be noticed that the outer ends ofthe arms W W are grooved in such lines as to form, with the exposedsurface of the Wire V,

a surface over which the Wheel of a trolley can freely ride.

p The head W of the hanger and the socket in which it rests are angularin cross-section in order to prevent the hanger from turning in itssupport, which movement it is especially desirable should not take placein a hanger or support having laterally-extending wire-supporting armsand in cases where the wire-engaging arms are secured to the stem of thehanger by means such as shown herein. While I prefer that the head Wshould be angular, any other shape may be given thereto which willoperate, in conjunction with the socket in the casting, to prevent theturning of the hanger.

By the construction which I have described I secure a scissors-liketrolley-wire support or hanger having two arms or parts arranged zoo tocross each other and to grasp and hold the wire by the end portions ofthe arms which are on one side of the crossing-line of the arms, and tohave the other end portions acted upon by the means which force togetherthe wire-grasping portions of the arms. I prefer that one of the arms Wshould be provided with an opening or passage 7, through which. theother arm W passes, so that the two arms may both be arranged in thesame longitudinal planes, and yet cross each other, as described. I alsosecure a trolley-arm support the wire engaging and supporting arms orparts of which are easily separable topermit the ready removal andattachment of the wire and which extend laterally or at substantiallyright angles from the stem which sustains them.

The castingW is formed with an outwardly and downwardly inclined skirtor rainshed W, as shown, to shield the insulating material Y from rainor snow.

In the drawings the support is shown to be adapted to alaterally-running trolley; but it is evident that the parts may bevariously modified or changed in shape sufficient to enable it to beadapted to a vertically-running trolley.

The conductor wire V is provided with grip-ribs V at the points wherethe supporters occur to afford means whereby the jaws of the arms W Wmay be attached to the conductor-wire without projecting over any partof the main wire, so that the presence of the supporter does notin anymanner interfere with the passage of the trolley-wheels. This is animportant feature of my invention, as it enables me to connect thesupporter firmly to the trolley-wire without obstructing any of itsoperative portions, whereas with all forms of detachable supporters withwhich I am acquainted some portions of the supporters project over someportion of the operative surface of the conductor-wire, and therebyoffer an uneven surface to the trolleywheel, which produces sparking andconsequent deterioration of the wire every time the trolley-wheelpasses. With my arrangement, however, the wire is as free'fromobstruction to the passage of the trolley-wheel at the points where thesupporters are attached as at any other points. By this simple means atrolley-wire supporter is produced which may be readily-attached to anddetached from the conductorwire and as readily attached to and detachedfrom the supporting-posts, walls, or other fixtures for suspending thewire.

In manylocalities,such as where miningand excavating operations arebeing carried for ward where frequent changes and shifting of thedirection and location of the trolley-wires are required, this supporterwill be found very convenient, as by the use of the removable anddetachable supporters the conductor-line can be readily and quicklychanged without the necessity of unsoldering any parts or otherwisedislocating any of the fastenings. This is a great advantage and greatlyenhances the value of temporary electric lines to which it may beapplied.

What I claim is 1. In a trolley-wire hanger, the combination of acasting adapted to be secured to a support and provided with an interiorrecess angular in shape surrounded by an integral wall, a hanger havinga head arranged to enter the said recess or socket, insulating materialbe: tween the head of the hanger and the casting, and means carried bythe hanger for securing the trolley-wire thereto, substantially as setforth.

2. In a trolley-wire hanger,the combination of a casting adapted to besecured to a support and provided with an interior recess angular inshape, a hanger having a head arranged to enter the said recess orsocket, insulating material between the head of the hanger and thecasting, and means for supporting the trolley-wire extending laterallyfrom the hanger, substantially as set forth.

3. In a trolley-wire hanger or support, the combination of a castinghavinga throughsocket, a face arranged to lie flat against a support,and means by which the hanger is secured to the support,a hanger havingahead arranged to lie in the socket of the casting, insulating materialbetween the head of the hanger and the casting, and means for coveringthe inner end of the said through-socket, substantially as set forth.

4. In a trolley-wire hanger or support, the combination of a castingarranged to be secured by one face to a suitable support, the castingbeing provided with a socket and also having that face by which it isattached to its support recessed around the said socket, a hanger havinga head which is adapted to enter the said socket, insulating materialbetween the head of the hanger and the said casting, a cap arranged toclose the inner end of the socket and be situated in the said recessedportion of the casting and means for securing a trolley-wire to thehanger, substantially as set forth.

5. In a trolley-wire hanger or support, the combination of an insulatedstem, a pair of separable arms arranged to grasp and hold the wireextending laterally from the said stem, one of said arms having the lugW and the other of said arms having a seat for said lug and means forholding the arms together in position to grasp the wire, substantiallyas set forth.

6. In a trolley-wire hanger or support, the combination of an insulatedstem, a pair of scissors-like arms extending laterally from the stem andarranged at one end to grasp and hold the wire, and at their other endengaging with the stem, said arms having a lever-like separableengagement between their ends and means for adjusting the arms to causethem to grasp or release the wire, substantially as set forth.

IIO

7. In a trolley-wire hanger the combination of an insulated shank orstem, gripping-arms having openings in which said shank is inserted, andmeans adjustable on said shank transversely to the arms to engage saidarms and cause the latter to grip the wire, substantially as set forth.

8. Thecombinationinatrolley-wirehanger of two arms each having awire-engaging jaw, said arms being detachable from each other, and meansfor individually adjusting said arms to cause the jaws to grasp thewire, substantially as set forth.

9. The herein-described trolley-wire support, consisting of a body W,having a stem or rod W projecting therefrom, two oppositely-inclinedlaterally-extending arms adjustably mounted on said rod and adapted togrip between their free ends a trolley-wire, and means for holding saidarms stationary, substantially as set forth.

10. In a trolley-wire hanger, the combination of a body or support, anarm projecting from said body,and having in one face, near its free end,a seat or groove for a wire, another arm mounted on the body and havingat an intermediate point of its length a bearing on the first said arm,and having near its free end a groove or seat for the wire, means foradjusting the inner end of the last said arm toward and from the otherarm,and means for holding. the first said arm stationary upon the bodyor supporter, substantially as set forth.

11. In a trolley-wire hanger, the combination of a body or supporthaving a depending stem, an arm rigidlysecured to said stem andextending therefrom, said arm having a wiregroove near its free end,another arm having a bearing against the said first arm at anintermediate point of its length and having its inner end loosely fittedabout the said depending stem and provided near its free end with a wiregroove or seat, and a nut engaging with a thread in the saidsupporting-stem and adapted to adjust the last arm thereon,substantially as set forth.

12. In a trolley-wire hanger or support, the combination of an insulatedstem, an arm eX- tending laterally from the stem and arranged to engagewith the/wire, the arm being arranged to have an angular motion aboutthe said stem, means for holding the arm rigidly after it has beenangularly adjusted, and means for securing the wire to the said arm,substantially as set forth.

13. In a trolley-wire hanger or support, the combination of an insulatedstem, means for holding the stem against turning, a wire-supporting armextendinglaterallyfrom the stem, and arranged to have an angularadjustment about the stem, means for securing the arm rigidly to thestem after it has been adjusted, and means for securing the Wire to thearm, substantially as set forth.

14. In a trolley-Wire hanger or support, the combination of an insulatedstem, means for holding the stem against turning, and a scissors-likewire-support extending laterally from the stem and comprising an armengaging at its inner end the stem and adjustable angularly about thesame, means for securing the said arm rigidly to the stem afteradjustment, another arm arranged to clamp the wire against the firstsaid arm, and having a loose engagement at its inner end with the stem,and means for forcing the last said arm to clamp the wire against theother arm, substantially as set forth.

15. In a trolley-wire hanger, the combination of an insulated shank orstem, grippingarms movable along said stem, and means adjustable alongsaid stem transversely to said arms to engage the arms and cause them togrip the wire.

16. In a trolley-wire hanger, the combination of an insulatedscrew-threaded stem, gripping-arms having openings in which said stem isinserted, a nut engaging the thread of the stem for causing the grippingaction of the arms, and means opposing the pressure of the nut.

In testimony whereof I affix my signature in presence of two witnesses.

' ALEXANDER PALMROS.

Vitnesses:

LEOTA I. SAYLOR, R. GEo. HUToHINs. 7

